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3 years ago

When a chance mutation modifies a virus to attach to a new host species, it is called

Biology

1 answer:

strojnjashka [21]3 years ago

4 0

Answer:

gain-of-function

Explanation:

Gain-of-function mutations represent a type of genetic change that may confer a new function to the gene that undergoes the mutation. In this case, a gain-of-function mutation conferred to the virus an adaptive advantage by allowing it to encode a new protein which is capable of attaching to the cell membrane of a new host. In this regard, it is important to note that loss-of-function mutations are quite common in nature, while gain-of-function mutations are relatively rare.

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Select the correct answer from each drop-down menu.

Masteriza [31]

Answer:

The question is incomplete as the options are not stated, here are the options from another website.

options for A, B and C.

respiration,

photosynthesis,

transpiration.

The answers are;

1. Respiration.

2. Photosynthesis.

3. The processes form the carbon cycle.

Explanation:

From number 1. Prices which is respiration, respiration is a process of gas exchange which oxygen is inhaled and carbondioxide is exhaled into the atmosphere.

Photosynthesis uses the carbon to produce food. This is a process where carbondioxide are used by green plants in line with light energy from the sun and water to produce glucose and oxygen.

The processes are carbon cycle because carbon cycle shows how carbon flow from the atmosphere to the biosphere.

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3 years ago

Which one of the statements listed below indicates an appropriate understanding of palpating a blood pressure?

charle [14.2K]

A palpated blood pressure is typically falsely lower than a blood pressure obtained by auscultation."

3 0

3 years ago

Which has a greater biotic potential- humans or mice? Why?

Ganezh [65]

Nice because : Biotic potential is the ability of a population of living species to increase under ideal environmental conditions – sufficient food supply, no predators, and a lack of disease. An organism’s rate of reproduction and the size of each litter are the primary determining factors for biotic potential.

4 0

3 years ago

Which of the following is a good way to analyze data?

liubo4ka [24]

C. Organize it into charts, graphs, do calculation if necessary.

5 0

2 years ago

Read 2 more answers

A geneticist isolates a gene for a specific trait under study She also isolates the corresponding mRNA Upon comparison, the mRNA

olga nikolaevna [1]

Answer:

C) no, the final mRNA contains only exons, the introns were removed

Explanation:

Exons are the coding areas while the introns are non-coding areas. Both of these are the sequences of nucleotide within a gene.

RNA splicing is a process which usually occurs as the RNA matures, causing the removal of introns ( non coding areas of the RNA ) i-e they will not be expressed in the final messenger RNA, while exons continue to form covalent bonds with one another to form a mature mRNA.

So in the given scenario, Upon comparison, the mRNA is found to contain 1,000 fewer bases than the DNA sequence because the introns were removed by RNA splicing.

Hence option C) no, the final mRNA contains only exons, the introns were removed is correct.

5 0

3 years ago